PP cartridge filter(PP cartridge security filter) is also called security filter,the filter hosuing usually is made of the stainless steel material,the internal part is with PP melt-blown, line burning, folding, titanium filtering cartridge, active carbon filtercartridge and other tubular filter cartridge for filtering element, selecting different filter elements according to the different filtration media and design technology to reach the qualified water output. The filter can also be adopted with the quick-fitting structure for convenient replacement and cleaning for the filter cartridge .This ultrafilter is widely used in pharmaceutical, chemical industry, food stuff, beverage, water treatment, brewing, petroleum, printing-dyeing, environmental protection and other industries, it is an ideal equipment for filtration, clarification and purification treatment on various source of liquid.